Answer on Statistics and Probability Question for Blenda

2011-05-23T04:39:23-0400

Question #2936

The probability that ea new battery does not work is 0.04.&lt;br&gt;a) what is the probability that e new battery does work? &lt;br&gt;b)A firm prodused 5000 batteries. How many would you expect to be faulty?

Expert's answer

2011-06-06T07:16:24-0400

The probability that a new battery does not work is 0.04.a)What is the probability that a new battery does work?Solution:The probability that a new battery works is: (1 -& the probability that it doesn&rsquo;t work) = 1 - 0.04 = 0.06Answer: 0.06& b)A firm prodused 5000 batteries. How many would you expect to be faulty?Solution:Expected value = x*p(x) = 5000*0.04 = 200Answer: 200